Echo Dot 2 Power Adapter Specs, Alexa 2nd Gen Dot

We cover the AC power adapter specs for Amazon Alexa Echo Dot 2 smart speaker here. It is an often seen medium-current USB switching power supply. The detachable cord has a female A style USB connector with the usual USB wattage. See it in the next picture.

USB port side of the AC power adapter for the Amazon Alexa Echo Dot Gen 2 smart speaker.

The US version of this USB power supply sports a standard 120v two prong, non polarized plug. It has non retractable prongs, as displayed next.

Foldable prongs are not always helpful. That’s true for non portable uses for the Echo Dot 2, since this speaker needs external power to work. Foldable prongs can loosen over time and develop faulty connections. This can cause poor operation and speaker cutouts. Now you are not likely to plug and unplug the Echo Dot 2 power cord much. So we feel that folding prongs would give little added value here. In fact, they could cause lots of problems instead.